I've deployed BES against Exchange 2003, but know very little about it. I now have a problem that is testing the limits of my knowledge.
One user recently stopped getting messages on the phone. They appear in the mailbox and seem to be ok in Outlook. The user can send mail correctly. SMS works. I can send PIN messages to the phone from the BES console. The emails never synchronize. I've restarted the server just to verify it's not gone insane. The user actually was expecting a new phone, so we activated it when it came in just in case the phone itself was malfunctioning. No Luck.
The log files are basically undecipherable. I don't see anything obviously wrong, though.
How do you go about troubleshooting something like this?